Nematic Ordering Problem As Polymer Excluded Volume One

Details Nematic Ordering Problem As Polymer Excluded Volume One Nematic Ordering Problem As Polymer Excluded Volume One

2002-12-18

arxiv.org/abs/cond-mat/0212462v1

Physics

Condensed Matter

Statistical Mechanics

11 pages, 13 references

Scientific paper

The new method of the mean-field approximation is extended. An approach which enables to estimate some parameters of the transition from the isotropic state of hard sticks to the nematic ordering phase is suggested. An technique of the investigation of the model jointed to the so-called polymer excluded volume problem is proposed. The critical exponents are estimated. The transition of a swelling polymer coil to ideal is revealed as the polymerization degree of the chain increases. The entanglement concentration obtained is in accordance with experimental data for polymers with flexible chains. The number of monomers between neighbor entanglements assumes to be the ratio of the stick length to its diameter. The comparison of the theory with experimental data is made.

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